Gaza health officials say Israeli airstrikes have killed at least 19 people including six children at a water collection point.

The Israeli military said it struck militant targets in northern Gaza, including command and control centers, after taking steps to mitigate the risk of harming civilians.

An Israeli strike hit Palestinians near a medical centre in Gaza on Thursday, killing 16 including children and wounding more people, local health authorities said, as ceasefire talks dragged on with no result expected soon.